/Engine/Plugins/Online/OnlineSubsystemUtils/Source/OnlineSubsystemUtils/Classes/OnlineSessionClient.h
Chance for the session client to handle the disconnect
true if disconnect was handled, false for general engine handling
virtual bool HandleDisconnectInternal ( [UWorld](API\Runtime\Engine\Engine\UWorld) * World, [UNetDriver](API\Runtime\Engine\Engine\UNetDriver) * NetDriver )